HD6412350 Hitachi, HD6412350 Datasheet - Page 170

• Manufacturer Part Number: HD6412350
• Description: (HD6412350 / HD6432351) 16-BIT MICROCONTROLLER
• Manufacturer: Hitachi

6.4.4
8-Bit 2-State Access Space: Figure 6-6 shows the bus timing for an 8-bit 2-state access space.
When an 8-bit access space is accessed, the upper half (D
The LWR pin is fixed high. Wait states cannot be inserted.
150
Basic Timing
Note: n = 0 to 7
Read
Write
Figure 6-6 Bus Timing for 8-Bit 2-State Access Space
Address bus
D
D
D
D
15
15
ø
7
7
HWR
to D
to D
LWR
to D
to D
CSn
RD
AS
8
0
8
0
T
1
Bus cycle
15
High
to D
High impedance
8
Valid
) of the data bus is used.
T
2
Invalid
Valid